1. When lights fuse, furniture gets rickety, pipes get clogged, or vacuum cleaners fail to operate,
    每当电灯保险丝烧断、家具榫头松动、管道堵塞、吸尘器不动时，

2. There came a rickety old car.
    那儿来了一辆东倒西歪的旧卡车.

3. Don´t use that old cart; it´s rickety.
    不要用那破马车，因为它摇摇晃晃的。